TYPO3 8.x through 8.7.26 and 9.x through 9.5.7 allows Deserialization of Untrusted Data.
Priority MEDIUM 41CWE-502Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub. Impact type from CWE-502.
Summary
TYPO3 8.x through 8.7.26 and 9.x through 9.5.7 allows Deserialization of Untrusted Data.
Why it matters now
EPSS 0.01526 74th percentileScored 2026-11-07
Fix Fixed typo3/cms-core (Packagist): 8.7.27, 9.5.8typo3/cms (Packagist): 8.7.27, 9.5.8
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
| — | typo3/cms-core (Packagist) | 8.0.0 to before 8.7.27 | 8.7.27 | Patch available | GHSA-86hp-xrhj-fhpq |
| — | typo3/cms-core (Packagist) | 9.0.0 to before 9.5.8 | 9.5.8 | Patch available | GHSA-86hp-xrhj-fhpq |
| — | typo3/cms (Packagist) | 8.0.0 to before 8.7.27 | 8.7.27 | Patch available | GHSA-86hp-xrhj-fhpq |
| — | typo3/cms (Packagist) | 9.0.0 to before 9.5.8 | 9.5.8 | Patch available | GHSA-86hp-xrhj-fhpq |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
- typo3/cms-core (Packagist) Vendor— Affected 8.0.0 to before 8.7.27 Fixed in 8.7.27 Patch available GHSA-86hp-xrhj-fhpq
- typo3/cms-core (Packagist) Vendor— Affected 9.0.0 to before 9.5.8 Fixed in 9.5.8 Patch available GHSA-86hp-xrhj-fhpq
- typo3/cms (Packagist) Vendor— Affected 8.0.0 to before 8.7.27 Fixed in 8.7.27 Patch available GHSA-86hp-xrhj-fhpq
- typo3/cms (Packagist) Vendor— Affected 9.0.0 to before 9.5.8 Fixed in 9.5.8 Patch available GHSA-86hp-xrhj-fhpq
Remediation
- Fix · GHSA-86hp-xrhj-fhpq typo3/cms-core (Packagist) Fixed in 8.7.27 Advisory →
- Fix · GHSA-86hp-xrhj-fhpq typo3/cms-core (Packagist) Fixed in 9.5.8 Advisory →
- Fix · GHSA-86hp-xrhj-fhpq typo3/cms (Packagist) Fixed in 8.7.27 Advisory →
- Fix · GHSA-86hp-xrhj-fhpq typo3/cms (Packagist) Fixed in 9.5.8 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2019-12747
- 2026-10-03 Alias added: GHSA-86hp-xrhj-fhpq
References
Advisory 2
Other 6
- https://github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms-core/CVE-2019-12747.yaml
- https://github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms/CVE-2019-12747.yaml
- https://github.com/TYPO3-CMS/core
- https://typo3.org/cms/release-news/typo3-8-release-notes
- https://typo3.org/security/advisory/typo3-core-sa-2019-020
- http://github.com/TYPO3/typo3/commit/647aa7afa582983cddc547fa106d31e2b1ef34fe
More Typo3 vulnerabilities
- TI-2023-10314 Persisted Cross-Site Scripting in Frontend Rendering in typo3 CVSS 3.1HIGH 8.8
- TI-2010-03538 The jumpUrl (aka access tracking) implementation in tslib/class.tslib_fe.php in TYPO3… CVSS 2.0HIGH 7.1
- TI-2009-00775 The jumpUrl mechanism in class.tslib_fe.php in TYPO3 3.3.x through 3.8.x, 4.0 before… CVSS 2.0MEDIUM 5.0
- TI-2009-00241 The Indexed Search Engine (indexed_search) system extension in TYPO3 4.0.0 through 4.0.9… CVSS 2.0HIGH 10.0
- TI-2020-08940 Improperly Controlled Modification of Dynamically-Determined Object Attributes in TYPO3 CMS CVSS 3.1CRITICAL 10.0
- TI-2011-03994 Improper authentication in TYPO3 CVSS 3.1CRITICAL 9.8
Sources
- CVE-2019-12747 · CVE Program
- CVE-2019-12747 · NVD
- FIRST EPSS
- GHSA-86hp-xrhj-fhpq · GitHub Advisory Database · CC BY 4.0
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